Exactly what data will be exchanged between the two services is unclear, though it will likely begin with contact sharing.

The new version of WhatsApp is also set to implement a new end-to-end encryption indicator that will allow users to tell whether secure technology is being used in the chats. In theory, turning on this feature would mean nobody would be able to see what messages are being exchanged between users, which will be shielded even from WhatsApp.